US20130251158A1 - Audio signal measurement method for speaker and electronic apparatus having the speaker - Google Patents
Audio signal measurement method for speaker and electronic apparatus having the speaker Download PDFInfo
- Publication number
- US20130251158A1 US20130251158A1 US13/426,610 US201213426610A US2013251158A1 US 20130251158 A1 US20130251158 A1 US 20130251158A1 US 201213426610 A US201213426610 A US 201213426610A US 2013251158 A1 US2013251158 A1 US 2013251158A1
- Authority
- US
- United States
- Prior art keywords
- speaker
- audio signal
- response curve
- frequency response
- frequency
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R29/00—Monitoring arrangements; Testing arrangements
- H04R29/001—Monitoring arrangements; Testing arrangements for loudspeakers
Definitions
- the disclosure is directed to an audio signal measurement method for a speaker, and an electronic apparatus having the speaker, and more particularly to an electronic apparatus capable of self-testing a speaker thereof and an audio signal measurement method for the speaker.
- the quality of speakers is often one of the keys leading to virtue or vice of sounds heard by users.
- a speaker having bad quality usually results in a certain level of transducer distortion and acoustic box leakage.
- a microphone is usually used to test transducer distortion and acoustic box leakage for the speaker.
- such measurement method typically requires enough spaces and cost for installing an anechoic room and an acoustic analyzer.
- the conventional audio signal measurement method for the speaker in the related art will be difficult to put into use due to an obstacle to budgets and spaces that is difficult to overcome.
- the disclosure is directed to an electronic apparatus capable of self-testing whether a speaker thereof is operated normally.
- the disclosure is directed to an audio signal measurement method for a speaker, which is adopted to determining whether the speaker is operated normally.
- the disclosure is directed to an audio signal measurement method for a speaker.
- the audio signal measurement method includes measuring a voltage value of an audio signal and measuring a current value of a current feedback from the speaker.
- the audio signal measurement method further includes executing a time domain to frequency domain transform according to the voltage value and the current value so as to obtain a frequency response curve.
- the audio signal measurement method yet further includes determining whether the frequency response curve falls within a predetermined area and sending out a signal if the frequency response curve falls out of the predetermined area.
- the disclosure is directed to an electronic apparatus.
- the electronic apparatus includes a speaker, a processing circuit and a power amplifier.
- the speaker is configured to send out sounds.
- the processing circuit is coupled to the speaker and configured to execute a time domain to frequency domain transform according to a voltage value of an audio signal and a current value of a current feedback from the speaker so as to obtain a frequency response curve.
- the power amplifier is coupled to the speaker and configured to drive the speaker according the voltage value of the audio signal.
- the processing circuit is capable of determining whether the frequency response curve falls within a predetermined area and sending out a signal when the frequency response curve falls out of the predetermined area.
- the time domain to frequency domain transform is a Fourier transform.
- the Fourier transform is a fast Fourier transform (FFT).
- FFT fast Fourier transform
- the time domain to frequency domain transform is a Laplace transform.
- the voltage value is represented by a time function v(t)
- the current value is presented by a time function i(t)
- the frequency response curve is obtained by executing the time domain to frequency domain transform on [v(t)/i(t)], where t represents time.
- the voltage value is represented by the time function v(t)
- the current value is presented by the time function i(t)
- the frequency response curve is obtained by executing the time domain to frequency domain transform on
- R dc is a resistor value of the driving device of the speaker under a normal room temperature
- B 1 is a constant value of the speaker.
- the electronic apparatus further includes an augmenter, which is coupled to the processing circuit and configured to augment a source signal to generate the audio signal.
- the processing circuit adjusts a gain for the audio signal.
- the frequency response curve is configured to present a relationship between an impedance of the speaker and a frequency of the sound sent from the speaker.
- the frequency response curve is configured to represent a relationship between a stroke of a diaphragm of the speaker and the frequency of the sound sent from the speaker.
- the electronic apparatus as described according to the embodiments of the disclosure may self-measure whether the speaker thereof meets desired requirements. Since neither an anechoic room nor an acoustic analyzer requires to be additionally installed, the usage convenience may be significantly enhanced, and the testing cost for the speaker may be lower down.
- FIG. 1 is a functional block diagram of an electronic apparatus of one embodiment of the disclosure.
- FIG. 2 is a diagram showing a frequency response curve of an electronic apparatus of one embodiment of the disclosure.
- FIG. 3 is a functional block diagram of an electronic apparatus of another embodiment of the disclosure.
- FIG. 4 is a diagram showing a frequency response curve of an electronic apparatus of another embodiment of the disclosure.
- FIG. 1 is a functional block diagram of an electronic apparatus of one embodiment of the disclosure.
- An electronic apparatus 100 may be a mobile phone, a tablet computer, a multi-media screen, a television and so on, but the disclosure is not limited thereto.
- the electronic apparatus 100 has a processing circuit 110 , a power amplifier 120 and a speaker 130 .
- the speaker 130 is configured to send out sounds based on an audio signal S IN .
- the processing circuit 110 is coupled to the speaker 130 and measures a voltage value v(t) of the received audio signal S IN .
- the processing circuit 110 transmits the received audio signal S IN to the power amplifier 120 such that the power amplifier 120 drives the speaker 130 to send out one sound according to the voltage value v(t) of the audio signal S IN .
- the power amplifier 120 is connected with a system voltage of the electronic apparatus 100 to supply power to the speaker 130 .
- the speaker 130 feeds back a current I to the processing circuit 110 , and the processing circuit 110 measures the current value i(t) of the current I.
- the processing circuit 110 executes a time domain to frequency domain transform according to the voltage value v(t) of the audio signal S IN and the current value i(t) of the current I feedback from the speaker 130 so as to obtain a frequency response curve.
- FIG. 2 is a diagram showing a frequency response curve of an electronic apparatus of one embodiment of the disclosure.
- a frequency response curve C 1 is one frequency response curve obtained by the processing circuit 110 executing the time domain to frequency domain transform according to the voltage value v(t) and the current value i(t).
- the horizontal axis in FIG. 2 represents each frequency of each sound sent out from the speaker 130
- the vertical axis represents each feature value corresponding to the speaker 130 based on each frequency.
- the frequency of the processing circuit 110 corresponds to the frequency of the sound sent from the speaker 130 , and thus, the horizontal axis in FIG.
- the feature value as described above is an impedance of the speaker 130 measured by the processing circuit 110 and namely, the frequency response curve C 1 is configured to present a relationship between the impedance of the speaker 130 and the frequency of the sound sent from the speaker 130 .
- the feature value as described above is a stroke of an diaphragm 134 of the speaker 130 measured by the processing circuit 110 and namely, the frequency response curve C 1 is configured to present a relationship between the stroke of the diaphragm 134 of the speaker 130 and the frequency of the sound sent from the speaker 130 .
- the processing circuit 110 determines whether the frequency response curve C 1 falls within a predetermined area II. When the processing circuit 110 has determined that the frequency response curve falls within an area I or an area III rather than within the predetermined area II, the processing circuit 110 sends a signal S A to remind a user of the electronic apparatus 100 . For example, a portion of a frequency response curve C 2 falls out of the predetermined area II, and accordingly, if the frequency response curve obtained by the processing circuit 110 is the frequency response curve C 2 , the processing circuit 110 sends out the signal S A .
- the aforementioned areas I, II and III are defined by an upper-limit curve L U and a lower-limit curve L D , and each feature value corresponding to the upper-limit curve L U and the lower-limit curve L D based on each frequency may be configured according to different user demands.
- the electronic apparatus 100 may also includes a display unit 140 , which is configured to display a message in connection with the signal S A to remind the user.
- the display unit 140 may be a touch screen or a non-touch screen.
- the speaker 130 has a driving device 132 and the diaphragm 134 .
- the driving device 132 is configured to drive the diaphragm 134 to vibrate according to a signal outputted by the power amplifier 120 so as to generate an acoustical wave.
- the driving device 132 is a coil, which is configured to drive the diaphragm 134 to vibrate in an electromagnetic induction manner.
- the driving device 132 and the diaphragm 134 are respectively disposed on two substrates, and the driving device 132 is a thin film electrode formed by metal, and the diaphragm 134 may carry statistic electricity.
- the aforementioned two substrates may be made of fiber. In other words, the two substrates may be two pieces of paper.
- the time domain to frequency domain transform executed by the processing circuit 110 is a Fourier transform, and the Fourier transform includes a fast Fourier transform (FFT). In one embodiment of the disclosure, the time domain to frequency domain transform executed by the processing circuit 110 is a Laplace transform.
- FFT fast Fourier transform
- the time domain to frequency domain transform executed by the processing circuit 110 is a Laplace transform.
- the voltage value of the audio signal S IN is represented by a time function v(t)
- the current value of the current I is presented by a time function i(t), where t represents time
- the processing circuit 110 executes the time domain to frequency domain transform on [v(t)/i(t)] to obtain one frequency response curve.
- the processing circuit 110 executes the time domain to frequency domain transform on [v(t)/i(t)] to obtain the frequency response curve
- the feature value corresponding thereto is the impedance of the speaker 130 .
- the processing circuit 110 executes the time domain to frequency domain transform on
- the processing circuit 110 executes the time domain to frequency domain transform on
- the electronic apparatus may further include an augmenter, which is configured to augment a source signal to generate the audio signal S IN .
- FIG. 3 is a functional block diagram of an electronic apparatus 300 of another embodiment of the disclosure. The major difference between the electronic apparatus 300 and the electronic apparatus 100 relies on the electronic apparatus 300 having an augmenter 150 . As for other devices of the electronic apparatus 300 , they are the same as those in the electronic apparatus 100 , and will not be described repeatedly hereinafter.
- the augmenter 150 is coupled to the processing circuit 150 and configured to gain a source signal S 0 to generate the audio signal S IN .
- the processing circuit 110 adjusts the gain of the augmenter 150 so that the adjusted frequency response curve may fall within the predetermined area.
- the processing circuit 110 lowers down the gain of the augmenter 150 so that the adjusted frequency response curve may fall within the predetermined area.
- FIG. 4 is a diagram showing a frequency response curve of an electronic apparatus of another embodiment of the disclosure.
- a frequency response curve C 3 is one frequency response curve obtained by the processing circuit 110 executing the time domain to frequency domain transform according to the voltage value v(t) and the current value i(t).
- the horizontal axis in FIG. 4 represents each frequency of each sound sent out from the speaker 130
- the vertical axis represents each feature value corresponding to the speaker 130 based on each frequency.
- the feature value as described above is the stroke of the diaphragm 134 of the speaker 130 measured by the processing circuit 110 and namely, the frequency response curve C 3 is configured to present a relationship between the stroke of the diaphragm 134 of the speaker 130 and the frequency of the sound sent from the speaker 130 .
- the processing circuit 110 determines whether the frequency response curve C 3 falls within a predetermined area A. When the processing circuit 110 has determined that the frequency response curve falls within an area B rather than within the predetermined area A, the processing circuit 110 sends the signal S A to remind the user of the electronic apparatus 100 .
- the aforementioned areas A and B are defined by an upper-limit curve B U , and a feature value corresponding to the upper-limit curve B U based on each frequency may be configured according to different user demands.
- the disclosure is directed to an electronic apparatus capable of self-testing whether a speaker thereof is operated normally. Since neither an anechoic room nor an acoustic analyzer requires to be additionally installed, the usage convenience may be significantly enhanced, and the testing cost for the speaker may be lower down.
Abstract
Description
- 1. Technical Field
- The disclosure is directed to an audio signal measurement method for a speaker, and an electronic apparatus having the speaker, and more particularly to an electronic apparatus capable of self-testing a speaker thereof and an audio signal measurement method for the speaker.
- 2. Description of Related Art
- In current modern society with increasingly developed multi-media, the quality of speakers is often one of the keys leading to virtue or vice of sounds heard by users. A speaker having bad quality usually results in a certain level of transducer distortion and acoustic box leakage. Conventionally, a microphone is usually used to test transducer distortion and acoustic box leakage for the speaker. However, such measurement method typically requires enough spaces and cost for installing an anechoic room and an acoustic analyzer. Thus, for the users, the conventional audio signal measurement method for the speaker in the related art will be difficult to put into use due to an obstacle to budgets and spaces that is difficult to overcome.
- The disclosure is directed to an electronic apparatus capable of self-testing whether a speaker thereof is operated normally.
- The disclosure is directed to an audio signal measurement method for a speaker, which is adopted to determining whether the speaker is operated normally.
- The disclosure is directed to an audio signal measurement method for a speaker. The audio signal measurement method includes measuring a voltage value of an audio signal and measuring a current value of a current feedback from the speaker. The audio signal measurement method further includes executing a time domain to frequency domain transform according to the voltage value and the current value so as to obtain a frequency response curve. The audio signal measurement method yet further includes determining whether the frequency response curve falls within a predetermined area and sending out a signal if the frequency response curve falls out of the predetermined area.
- The disclosure is directed to an electronic apparatus. The electronic apparatus includes a speaker, a processing circuit and a power amplifier. The speaker is configured to send out sounds. The processing circuit is coupled to the speaker and configured to execute a time domain to frequency domain transform according to a voltage value of an audio signal and a current value of a current feedback from the speaker so as to obtain a frequency response curve. The power amplifier is coupled to the speaker and configured to drive the speaker according the voltage value of the audio signal. Herein, the processing circuit is capable of determining whether the frequency response curve falls within a predetermined area and sending out a signal when the frequency response curve falls out of the predetermined area.
- In one embodiment of the disclosure, the time domain to frequency domain transform is a Fourier transform.
- In one embodiment of the disclosure, the Fourier transform is a fast Fourier transform (FFT).
- In one embodiment of the disclosure, the time domain to frequency domain transform is a Laplace transform.
- In one embodiment of the disclosure, the voltage value is represented by a time function v(t), the current value is presented by a time function i(t), and the frequency response curve is obtained by executing the time domain to frequency domain transform on [v(t)/i(t)], where t represents time.
- In one embodiment of the disclosure, the voltage value is represented by the time function v(t), the current value is presented by the time function i(t), and the frequency response curve is obtained by executing the time domain to frequency domain transform on
-
- where t represents time, Rdc is a resistor value of the driving device of the speaker under a normal room temperature, and B1 is a constant value of the speaker.
- In one embodiment of the disclosure, the electronic apparatus further includes an augmenter, which is coupled to the processing circuit and configured to augment a source signal to generate the audio signal. When the frequency response curve falls out of the predetermined area, the processing circuit adjusts a gain for the audio signal.
- In one embodiment of the disclosure, the frequency response curve is configured to present a relationship between an impedance of the speaker and a frequency of the sound sent from the speaker.
- In one embodiment of the disclosure, the frequency response curve is configured to represent a relationship between a stroke of a diaphragm of the speaker and the frequency of the sound sent from the speaker.
- To sum up, the electronic apparatus as described according to the embodiments of the disclosure may self-measure whether the speaker thereof meets desired requirements. Since neither an anechoic room nor an acoustic analyzer requires to be additionally installed, the usage convenience may be significantly enhanced, and the testing cost for the speaker may be lower down.
- In order to make the aforementioned and other features and advantages of the disclosure more comprehensible, embodiments accompanying figures are described in detail below.
- The accompanying drawings constituting a part of this specification are incorporated herein to provide a further understanding of the disclosure. Here, the drawings illustrate embodiments of the disclosure and, together with the description, serve to explain the principles of the disclosure.
-
FIG. 1 is a functional block diagram of an electronic apparatus of one embodiment of the disclosure. -
FIG. 2 is a diagram showing a frequency response curve of an electronic apparatus of one embodiment of the disclosure. -
FIG. 3 is a functional block diagram of an electronic apparatus of another embodiment of the disclosure. -
FIG. 4 is a diagram showing a frequency response curve of an electronic apparatus of another embodiment of the disclosure. - Referring to
FIG. 1 ,FIG. 1 is a functional block diagram of an electronic apparatus of one embodiment of the disclosure. Anelectronic apparatus 100 may be a mobile phone, a tablet computer, a multi-media screen, a television and so on, but the disclosure is not limited thereto. Theelectronic apparatus 100 has aprocessing circuit 110, apower amplifier 120 and aspeaker 130. Thespeaker 130 is configured to send out sounds based on an audio signal SIN. Theprocessing circuit 110 is coupled to thespeaker 130 and measures a voltage value v(t) of the received audio signal SIN. Theprocessing circuit 110 transmits the received audio signal SIN to thepower amplifier 120 such that thepower amplifier 120 drives thespeaker 130 to send out one sound according to the voltage value v(t) of the audio signal SIN. Typically, thepower amplifier 120 is connected with a system voltage of theelectronic apparatus 100 to supply power to thespeaker 130. Thespeaker 130 feeds back a current I to theprocessing circuit 110, and theprocessing circuit 110 measures the current value i(t) of the current I. In addition, Theprocessing circuit 110 executes a time domain to frequency domain transform according to the voltage value v(t) of the audio signal SIN and the current value i(t) of the current I feedback from thespeaker 130 so as to obtain a frequency response curve. - Referring to
FIG. 2 withFIG. 1 ,FIG. 2 is a diagram showing a frequency response curve of an electronic apparatus of one embodiment of the disclosure. A frequency response curve C1 is one frequency response curve obtained by theprocessing circuit 110 executing the time domain to frequency domain transform according to the voltage value v(t) and the current value i(t). The horizontal axis inFIG. 2 represents each frequency of each sound sent out from thespeaker 130, and the vertical axis represents each feature value corresponding to thespeaker 130 based on each frequency. Herein, after voltage value v(t) and the current value i(t) are transformed to the frequency domain, the frequency of theprocessing circuit 110 corresponds to the frequency of the sound sent from thespeaker 130, and thus, the horizontal axis inFIG. 2 may also represent the frequency corresponding to the voltage value v(t) or the current value i(t) transformed to the frequency domain. In one embodiment of the disclosure, the feature value as described above is an impedance of thespeaker 130 measured by theprocessing circuit 110 and namely, the frequency response curve C1 is configured to present a relationship between the impedance of thespeaker 130 and the frequency of the sound sent from thespeaker 130. In another embodiment of the disclosure, the feature value as described above is a stroke of andiaphragm 134 of thespeaker 130 measured by theprocessing circuit 110 and namely, the frequency response curve C1 is configured to present a relationship between the stroke of thediaphragm 134 of thespeaker 130 and the frequency of the sound sent from thespeaker 130. Theprocessing circuit 110 determines whether the frequency response curve C1 falls within a predetermined area II. When theprocessing circuit 110 has determined that the frequency response curve falls within an area I or an area III rather than within the predetermined area II, theprocessing circuit 110 sends a signal SA to remind a user of theelectronic apparatus 100. For example, a portion of a frequency response curve C2 falls out of the predetermined area II, and accordingly, if the frequency response curve obtained by theprocessing circuit 110 is the frequency response curve C2, theprocessing circuit 110 sends out the signal SA. The aforementioned areas I, II and III are defined by an upper-limit curve LU and a lower-limit curve LD, and each feature value corresponding to the upper-limit curve LU and the lower-limit curve LD based on each frequency may be configured according to different user demands. - In another embodiment of the disclosure, the
electronic apparatus 100 may also includes adisplay unit 140, which is configured to display a message in connection with the signal SA to remind the user. Thedisplay unit 140 may be a touch screen or a non-touch screen. - In one embodiment of the present disclosure, the
speaker 130 has adriving device 132 and thediaphragm 134. Thedriving device 132 is configured to drive thediaphragm 134 to vibrate according to a signal outputted by thepower amplifier 120 so as to generate an acoustical wave. In one embodiment of the disclosure, the drivingdevice 132 is a coil, which is configured to drive thediaphragm 134 to vibrate in an electromagnetic induction manner. In addition, in one embodiment of the disclosure, the drivingdevice 132 and thediaphragm 134 are respectively disposed on two substrates, and thedriving device 132 is a thin film electrode formed by metal, and thediaphragm 134 may carry statistic electricity. The aforementioned two substrates may be made of fiber. In other words, the two substrates may be two pieces of paper. - In one embodiment of the disclosure, the time domain to frequency domain transform executed by the
processing circuit 110 is a Fourier transform, and the Fourier transform includes a fast Fourier transform (FFT). In one embodiment of the disclosure, the time domain to frequency domain transform executed by theprocessing circuit 110 is a Laplace transform. - In addition, in one embodiment of the disclosure, the voltage value of the audio signal SIN is represented by a time function v(t), the current value of the current I is presented by a time function i(t), where t represents time, and the
processing circuit 110 executes the time domain to frequency domain transform on [v(t)/i(t)] to obtain one frequency response curve. Theprocessing circuit 110 executes the time domain to frequency domain transform on [v(t)/i(t)] to obtain the frequency response curve, and the feature value corresponding thereto is the impedance of thespeaker 130. In one embodiment of the disclosure, theprocessing circuit 110 executes the time domain to frequency domain transform on -
- to obtain one frequency response curve, where Rdc is a resistor value of the
driving device 132 of thespeaker 130 under a room temperature (about 25° C.), and a constant value B1 varies with ofdifferent speakers 130. Theprocessing circuit 110 executes the time domain to frequency domain transform on -
- to obtain the frequency response curve, and the feature value corresponding thereto is the stroke of the
diaphragm 134. - In one embodiment of the disclosure, the electronic apparatus may further include an augmenter, which is configured to augment a source signal to generate the audio signal SIN. Referring to
FIG. 3 ,FIG. 3 is a functional block diagram of anelectronic apparatus 300 of another embodiment of the disclosure. The major difference between theelectronic apparatus 300 and theelectronic apparatus 100 relies on theelectronic apparatus 300 having anaugmenter 150. As for other devices of theelectronic apparatus 300, they are the same as those in theelectronic apparatus 100, and will not be described repeatedly hereinafter. Theaugmenter 150 is coupled to theprocessing circuit 150 and configured to gain a source signal S0 to generate the audio signal SIN. When the frequency response curve obtained by theprocessing circuit 110 according to the voltage value v(t) and the current value i(t) falls out of the predetermined area, theprocessing circuit 110 adjusts the gain of theaugmenter 150 so that the adjusted frequency response curve may fall within the predetermined area. Usually, theprocessing circuit 110 lowers down the gain of theaugmenter 150 so that the adjusted frequency response curve may fall within the predetermined area. - Referring to
FIG. 4 withFIG. 3 ,FIG. 4 is a diagram showing a frequency response curve of an electronic apparatus of another embodiment of the disclosure. Therein, a frequency response curve C3 is one frequency response curve obtained by theprocessing circuit 110 executing the time domain to frequency domain transform according to the voltage value v(t) and the current value i(t). The horizontal axis inFIG. 4 represents each frequency of each sound sent out from thespeaker 130, and the vertical axis represents each feature value corresponding to thespeaker 130 based on each frequency. In one embodiment of the disclosure, the feature value as described above is the stroke of thediaphragm 134 of thespeaker 130 measured by theprocessing circuit 110 and namely, the frequency response curve C3 is configured to present a relationship between the stroke of thediaphragm 134 of thespeaker 130 and the frequency of the sound sent from thespeaker 130. - The
processing circuit 110 determines whether the frequency response curve C3 falls within a predetermined area A. When theprocessing circuit 110 has determined that the frequency response curve falls within an area B rather than within the predetermined area A, theprocessing circuit 110 sends the signal SA to remind the user of theelectronic apparatus 100. The aforementioned areas A and B are defined by an upper-limit curve BU, and a feature value corresponding to the upper-limit curve BU based on each frequency may be configured according to different user demands. - In light of the foregoing, the disclosure is directed to an electronic apparatus capable of self-testing whether a speaker thereof is operated normally. Since neither an anechoic room nor an acoustic analyzer requires to be additionally installed, the usage convenience may be significantly enhanced, and the testing cost for the speaker may be lower down.
- Although the disclosure has been described with reference to the above embodiments, it will be apparent to one of the ordinary skill in the art that modifications to the described embodiment may be made without departing from the spirit of the disclosure. Accordingly, the scope of the disclosure will be defined by the attached claims not by the above detailed descriptions.
Claims (18)
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/426,610 US8913752B2 (en) | 2012-03-22 | 2012-03-22 | Audio signal measurement method for speaker and electronic apparatus having the speaker |
TW101114582A TWI504283B (en) | 2012-03-22 | 2012-04-24 | Audio signal measurement method for speaker and electronic apparatus having the speaker |
CN201210175202.0A CN103327436B (en) | 2012-03-22 | 2012-05-30 | Audio signal measurement method for speaker and electronic apparatus having the speaker |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/426,610 US8913752B2 (en) | 2012-03-22 | 2012-03-22 | Audio signal measurement method for speaker and electronic apparatus having the speaker |
Publications (2)
Publication Number | Publication Date |
---|---|
US20130251158A1 true US20130251158A1 (en) | 2013-09-26 |
US8913752B2 US8913752B2 (en) | 2014-12-16 |
Family
ID=49195920
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US13/426,610 Expired - Fee Related US8913752B2 (en) | 2012-03-22 | 2012-03-22 | Audio signal measurement method for speaker and electronic apparatus having the speaker |
Country Status (3)
Country | Link |
---|---|
US (1) | US8913752B2 (en) |
CN (1) | CN103327436B (en) |
TW (1) | TWI504283B (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105246015A (en) * | 2015-11-11 | 2016-01-13 | 上海斐讯数据通信技术有限公司 | Electronic device and method and system for detecting loudspeaker sound source thereof |
CN111131992A (en) * | 2018-10-31 | 2020-05-08 | 神讯电脑(昆山)有限公司 | Micro loudspeaker detection system and detection method thereof |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI551153B (en) * | 2013-11-01 | 2016-09-21 | 瑞昱半導體股份有限公司 | Circuit and method for driving speakers |
CN104021148B (en) * | 2014-05-16 | 2017-05-03 | 小米科技有限责任公司 | Method and device for adjusting sound effect |
CN104244162B (en) * | 2014-10-11 | 2017-06-23 | 广东欧珀移动通信有限公司 | The noise detection method and device of a kind of loudspeaker |
TWI595791B (en) * | 2016-03-29 | 2017-08-11 | 高瞻資訊股份有限公司 | Method of detecting audio signal |
CN107371115A (en) * | 2017-07-18 | 2017-11-21 | Tcl移动通信科技(宁波)有限公司 | A kind of detection method, storage medium and the terminal of complete machine loudspeaker performance |
CN109391892B (en) * | 2017-08-04 | 2022-03-18 | 中兴通讯股份有限公司 | Performance detection method, device and system and mobile terminal |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5068903A (en) * | 1988-10-28 | 1991-11-26 | Alcatel N.V. | Method of and arrangement for linearizing the frequency response of a loudspeaker system |
US20050031132A1 (en) * | 2003-08-07 | 2005-02-10 | Tymphany Corporation | Control system |
US20090028349A1 (en) * | 2007-07-25 | 2009-01-29 | Samsung Electronics Co., Ltd. | Method and apparatus for detecting malfunctioning speaker |
US20110194705A1 (en) * | 2010-02-10 | 2011-08-11 | Nxp B.V. | System and method for adapting a loudspeaker signal |
US8023668B2 (en) * | 2005-12-14 | 2011-09-20 | Harman Becker Automotive Systems Gmbh | System for predicting the behavior of a transducer |
US20110228945A1 (en) * | 2010-03-17 | 2011-09-22 | Harman International Industries, Incorporated | Audio power management system |
US20130077795A1 (en) * | 2011-09-28 | 2013-03-28 | Texas Instruments Incorporated | Over-Excursion Protection for Loudspeakers |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5692050A (en) * | 1995-06-15 | 1997-11-25 | Binaura Corporation | Method and apparatus for spatially enhancing stereo and monophonic signals |
-
2012
- 2012-03-22 US US13/426,610 patent/US8913752B2/en not_active Expired - Fee Related
- 2012-04-24 TW TW101114582A patent/TWI504283B/en not_active IP Right Cessation
- 2012-05-30 CN CN201210175202.0A patent/CN103327436B/en not_active Expired - Fee Related
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5068903A (en) * | 1988-10-28 | 1991-11-26 | Alcatel N.V. | Method of and arrangement for linearizing the frequency response of a loudspeaker system |
US20050031132A1 (en) * | 2003-08-07 | 2005-02-10 | Tymphany Corporation | Control system |
US8023668B2 (en) * | 2005-12-14 | 2011-09-20 | Harman Becker Automotive Systems Gmbh | System for predicting the behavior of a transducer |
US20090028349A1 (en) * | 2007-07-25 | 2009-01-29 | Samsung Electronics Co., Ltd. | Method and apparatus for detecting malfunctioning speaker |
US20110194705A1 (en) * | 2010-02-10 | 2011-08-11 | Nxp B.V. | System and method for adapting a loudspeaker signal |
US20110228945A1 (en) * | 2010-03-17 | 2011-09-22 | Harman International Industries, Incorporated | Audio power management system |
US20130077795A1 (en) * | 2011-09-28 | 2013-03-28 | Texas Instruments Incorporated | Over-Excursion Protection for Loudspeakers |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105246015A (en) * | 2015-11-11 | 2016-01-13 | 上海斐讯数据通信技术有限公司 | Electronic device and method and system for detecting loudspeaker sound source thereof |
CN111131992A (en) * | 2018-10-31 | 2020-05-08 | 神讯电脑(昆山)有限公司 | Micro loudspeaker detection system and detection method thereof |
Also Published As
Publication number | Publication date |
---|---|
TWI504283B (en) | 2015-10-11 |
CN103327436B (en) | 2017-04-26 |
US8913752B2 (en) | 2014-12-16 |
CN103327436A (en) | 2013-09-25 |
TW201340731A (en) | 2013-10-01 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US8913752B2 (en) | Audio signal measurement method for speaker and electronic apparatus having the speaker | |
JP6067921B2 (en) | Reduction of audio distortion in audio systems | |
Klippel | Assessment of voice-coil peak displacement Xmax | |
US8081767B2 (en) | Method for adjusting frequency response curve of speaker | |
CN105764008B (en) | A kind of method and device for debugging sound reinforcement system transmission frequency characteristic | |
CN106686493B (en) | The method and system of adjust automatically sound quality | |
US8385563B2 (en) | Sound level control in responding to the estimated impedances indicating that the medium being an auditory canal and other than the auditory canal | |
CN105228073B (en) | Open air speakers gas leakage test macro and method | |
CN116158092A (en) | System and method for assessing earseals using external stimulus | |
KR101381200B1 (en) | Device and method for testing mic | |
US20090220097A1 (en) | Sound testing device for mobile phone and method for using the same | |
CN112565976A (en) | Speaker driving circuit, temperature protection method, terminal device, and storage medium | |
US11877126B2 (en) | Inductive excursion sensing for audio transducers | |
KR101413085B1 (en) | Device and method for testing receiver | |
KR101327214B1 (en) | Test method for abnormal of speaker and test device using the same | |
CN104864943B (en) | A kind of calibrating installation and method of liquid level tester | |
KR101757362B1 (en) | Pink noise output method for inspected of acoustic apparatus | |
US9661430B2 (en) | Method of identifying passive radiator parameters | |
Irrgang et al. | Fast and Sensitive End-of-Line Testing | |
KR20030069255A (en) | Checking sound quality and characcteristic of speaker system and method therefor | |
US10805723B2 (en) | Automatic characterization of perceived transducer distortion | |
US20130243221A1 (en) | Method and system of equalization pre-preocessing for sound receivng system | |
JP4740586B2 (en) | Electret surface voltage measuring device | |
US20220155137A1 (en) | Acoustic noise detection method and system using vibration sensor to detect acoustic noise | |
KR101386366B1 (en) | Method for resonance frequency measuring of speaker and apparatus using the same |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: HTC CORPORATION, TAIWAN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:TONG, HANN-SHI;LEE, YU-SHENG;LAI, YU-CHIEH;AND OTHERS;REEL/FRAME:027922/0789 Effective date: 20120315 |
|
STCF | Information on status: patent grant |
Free format text: PATENTED CASE |
|
MAFP | Maintenance fee payment |
Free format text: PAYMENT OF MAINTENANCE FEE, 4TH YEAR, LARGE ENTITY (ORIGINAL EVENT CODE: M1551) Year of fee payment: 4 |
|
FEPP | Fee payment procedure |
Free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
LAPS | Lapse for failure to pay maintenance fees |
Free format text: PATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES (ORIGINAL EVENT CODE: EXP.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
|
STCH | Information on status: patent discontinuation |
Free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
|
FP | Lapsed due to failure to pay maintenance fee |
Effective date: 20221216 |